My older brother recently got in contact with me and asked me if I was interested in an old Oscilloscope that was being sold by someone in Queensland, it turned out to be an old Telequipment D33R 15Mhz Dual Trace Valve Oscilloscope, anyway, my older brother has bought it for me and will be sending it to me in the post, here's what it looks like:
I think it's going to prove to be quite a useful piece of test gear for doing any servicing work on guitar amplifiers, even though it's a 15Mhz Oscilloscope, that's still plenty of bandwith to handle audio which ranges from about 20Hz to 20kHz, of course, you can get by with just a multimeter but being able to see what the signal looks like at different points in a circuit does help things a lot, next thing I need to either buy or build is a decent Audio Sine/Square signal generator, I found an old ETI (Electronics Today International) magazine pdf online that featured an interesting project article for a sweep oscillator, and it also had artwork for etching a circuit board, so it's going to be a build project I'll be working on soon.
Apparently there are two versions of this Oscilloscope, there's the D33 which was in a typical Oscilloscope case, and the rackmount D33R which is the one you see above.
Last edited by DrNomis_44; 26-05-2019 at 04:28 PM.
Reply With Quote